Any possibility that Azure can change the SNAT ip in managed Standard Load balancer?

Tanul 1,251 Reputation points
2023-05-31T13:04:35.3766667+00:00

Hello,

When we create standard sku AKS then Azure automatically creates a public ip for us as a new resource in that MC-xxx resource group which is used as outbound in Standard load balancer as mentioned here.

Is that IP static or dynamic. Can azure change that ip anytime as it can change with Default SNAT(mentioned here). Should we provide our own custom ip or can we use that IP only. We don't need more that 1 IP as 64K SNAT ports are enough for us?

Kind Regards,

Tanul

Azure Kubernetes Service (AKS)
Azure Kubernetes Service (AKS)
An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.
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  1. Akram Kathimi 1,046 Reputation points Microsoft Employee
    2023-05-31T13:16:15.4933333+00:00

    Hi @Tanul ,

    Thank you for your question.

    The public IP that is automatically created is dynamic, and as mentioned in the document you thankfully shared, customers don't own the default outbound access IP. This IP may change, and any dependency on it could cause issues in the future.

    However, you are able to create a static IP and assign it to the cluster load balancer as mentioned in this document.

    Please Accept the answer if the information helped you. This will help us and others in the community as well.

    Thank you.